How much penis size is required to reach the posterior fornix of the vagina?

Hi guys I have one question in my mind and I’ve couldn’t find an answer for it, so I discovered this good website and wanted to share this question with you. I’ve read on female anatomy and the spots that gives women intense orgasms so I knew about the deep spot which is the posterior fornix or ” cul-de-sac” but I don’t know how far is it from the vaginal entrance during intercourse, so guys I’m asking you how much size is it? In case you want to know my size I have 17cm in length and 14cm in girth. Please don’t answer size doesn’t matter or you need 9 inches or an answer who doesn’t have any link with the question, thank you!

Vaginal shape and depth vary too much to answer this question honestly. Position also changes this answer. As well as the size of the woman in question, if she has thick thighs, a big butt or is flexible or not.

There is no ruler measurement for the posterior fornix because women differ too much for there to be one.

Thank you for the answer, can you give me a proximative number or can my size reach it or not?

Between 16 and 23 centimeters, are you satisfied?

Thank you for answering

I have reached it with my last girlfriend.

Was nowhere near anything with the wife, not even sure she had a g-spot or anything other than a cave down there.

At my size i can always reach the a-spot with precise angling, the cul-de-sac is probably about 70% of the time.

For whatever that’s worth.

For me/us, it’s a ways down there. She is a small woman (close to five feet), and I can approximate 8 inches if I’m super-hard and really pressing down hard on her, pelvis-to-pelvis…and then I can touch something back there. But it takes some effort.

Angles are important. Try having her lay her legs across your groin, penis between her thighs, then rolling towards her and thrusting in that way with one of her legs up. This was a great shot to the place in question that just was an impossible angle for me otherwise.